Vibro-cutter
From Tardis Wiki, the free Doctor Who reference
A vibro-cutter was a cutting device. While chained to a post on a desert planet, the Twelfth Doctor told Clara Oswald to pass him the vibro-cutters so they could break free, only to be informed by her that she had left them in the pocket of her other jacket which she left at home. (TV: The Caretaker)
